CN105461321A - Hot metal mixer castable and preparation method thereof - Google Patents
Hot metal mixer castable and preparation method thereof Download PDFInfo
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- CN105461321A CN105461321A CN201410411796.XA CN201410411796A CN105461321A CN 105461321 A CN105461321 A CN 105461321A CN 201410411796 A CN201410411796 A CN 201410411796A CN 105461321 A CN105461321 A CN 105461321A
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- hot metal
- metal mixer
- castable
- alumina
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Abstract
The invention relates to a hot metal mixer castable and a preparation method thereof. The hot metal mixer castable comprises 15-55wt% of corundum, 5-15wt% of 96% silicon carbide, 2-8wt% of zircon sand, 0-20wt% of 80% alumina, 0-55wt% of flint clay and 10-15wt% of a binder. Working conditions of different positions of a hot metal mixer are different, so different proportions are adopted; and a molten iron containing position and a slag line position use the 88% alumina ingredient not the flint clay, and a furnace roof position uses the flint clay, so respective advantages are full used, thereby a whole hot metal mixer lining working layer has balanced working life. Practical ingredient proportioning is enforced according to composition of various granularities of main materials, so the castable has optimum strength and best fireproof performance, and the life of a castable working layer is 10 times or above longer than that of routine firebrick masonry hot metal mixer working layers, thereby the consumption is reduced, and conditions are provided for improving the quality of steel.
Description
Technical field
The present invention relates to technical field of refractory materials, especially a kind of blast furnace mixer casting material and preparation method thereof.
Background technology
Hot metal mixer is one of visual plant of steelworks, and first the molten iron shipped from iron work should mix in hot metal mixer.Hot metal mixer is a kind of main equipment, and its capacity can reach kiloton.The refractory lining of hot metal mixer is made up of safe floor and working lining.The working lining laying fireproof bricks of tradition hot metal mixer forms.In hot metal mixer use procedure, molten iron can to infiltrate in brickwork joint thus can cause coming off of refractory brick.And do not contact the furnace roof part of molten iron, due to the shake being repeatedly subject to thermal radiation and carry out due to manipulation require, also often cause furnace roof part to fall brick, therefore significantly shorten the work-ing life of hot metal mixer.Need to overhaul 3-4 time generally every year, each maintenance 7-8 days consuming time.This not only wastes a large amount of human and material resources, and the more important thing is owing to mixing iron and affect steelmaking process, affects the control of molten steel composition thus affects the quality of steel.
Summary of the invention
The object of this invention is to provide a kind of blast furnace mixer casting material, according to the different operating condition of stove different sites, corresponding mould material is provided, make extend to 3-5 the work-ing life of whole mud iron furnace, significantly to reduce the cost of steelworks, the more important thing is the molten iron ensureing to provide composition, homogeneous temperature to steel melting furnace, creating prerequisite for producing high-quality steel smoothly.
For achieving the above object, the present invention adopts following technical proposals:
A kind of blast furnace mixer casting material and preparation method thereof, is made up of the composition of following weight percents: the corundum of 15-55%, 96% silicon carbide of 5-15%, the zircon sand of 2-8%, 88% alumina of 0-20%, the flint clay of O-55%, the bonding agent of 10-15%.
Described bonding agent is made up of the composition of following weight percents: the fine silica powder of the aluminium oxide powder 25-55% of the aluminous cement 30-60% of 20-50%.
Described corundum is Brown Alundum or white fused alumina, granularity≤5mm, described carborundum granularity≤1.5mm, described zircon sand granularity≤0.5mm, its Zr0
2content>=60%, the granularity of 88% alumina is 5-15mm, and the granularity of flint clay is 5-20mm.
Various components are according to the above ratio added together mixing, namely become blast furnace mixer casting material (siccative), during use, add the water being no more than 10%, can use after mixing.
Adopt mould material of the present invention water the hot metal mixer working lining outpoured, thermotolerance, stability are all fine, owing to having used the mould material of different ratio at hot metal mixer different sites, the resistance to etch performance of whole metal mixer liner working lining is made to reach balanced, stop local shedding phenomenon, made whole hot metal mixer working lining improve more than ten times work-ing life.
Embodiment
According to sunlight blast furnace mixer casting material of the present invention, it is characterized in that being made up of the composition of following weight percents:
Corundum 15-55%
96% silicon carbide 5-15%
Zircon sand 2-8%
88% alumina 0-20%
Flint clay O-55%
Bonding agent 10-15%
Described bonding agent is made up of the composition of following weight percents: the fine silica powder of the aluminium oxide powder 25-55% of the aluminous cement 30-60% of 20-50%
Described corundum is Brown Alundum or white fused alumina, granularity≤5mm, described carborundum granularity≤1.5mm, described zircon sand granularity≤0.5mm, its Zr0
2content>=60%, the granularity of 88% alumina is 5-15mm, and the granularity of flint clay is 5-20mm.
Embodiment 1:
The mould material of containing molten iron position for hot metal mixer is grouped into by the one-tenth of following weight percents:
Brown Alundum 50%
96% silicon carbide 12%
Zircon sand 7%
88% alumina 18%
Bonding agent 13%
Wherein, bonding agent main composition ratio is
Aluminous cement 5%
Aluminium oxide powder 4%
Fine silica powder 4%.
Embodiment 2:
Mould material for hot metal mixer slag lining is made up of the composition of following weight percents:
White fused alumina 52%
96% silicon carbide 13%
Zircon sand 6%
88% alumina 17%
Bonding agent 12%
Wherein, bonding agent main composition ratio is
Aluminous cement 5%
Aluminium oxide powder 3%
Fine silica powder 4%.
Embodiment 3:
Mould material for hot metal mixer furnace roof (arch) position is made up of the composition of following weight percents:
Brown Alundum 36%
96% silicon carbide 9%
Zircon sand 5%
Flint clay 49%
Bonding agent 11%
Wherein, bonding agent main composition ratio is
Aluminous cement 4%
Aluminium oxide powder 4%
Fine silica powder 3%.
Claims (3)
1. blast furnace mixer casting material and preparation method thereof, it is characterized in that: be made up of the composition of following weight percents: the corundum of 15-55%, 96% silicon carbide of 5-15%, the zircon sand of 2-8%, 88% alumina of 0-20%, the flint clay of O-55%, the bonding agent of 10-15%.
2. a kind of blast furnace mixer casting material according to claim 1 and preparation method thereof, is characterized in that: described bonding agent is made up of the composition of following weight percents: the fine silica powder of the aluminium oxide powder 25-55% of the aluminous cement 30-60% of 20-50%.
3. a kind of blast furnace mixer casting material according to claim 1 and preparation method thereof, is characterized in that described corundum is Brown Alundum or white fused alumina, granularity≤5mm, described carborundum granularity≤1.5mm, described zircon sand granularity≤0.5mm, its Zr0
2content>=60%, the granularity of 88% alumina is 5-15mm, and the granularity of flint clay is 5-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411796.XA CN105461321A (en) | 2014-08-21 | 2014-08-21 | Hot metal mixer castable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411796.XA CN105461321A (en) | 2014-08-21 | 2014-08-21 | Hot metal mixer castable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105461321A true CN105461321A (en) | 2016-04-06 |
Family
ID=55599545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411796.XA Pending CN105461321A (en) | 2014-08-21 | 2014-08-21 | Hot metal mixer castable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105461321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316418A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Castable for aluminum industry |
| CN109516818A (en) * | 2018-12-03 | 2019-03-26 | 攀枝花钢城集团有限公司 | Hot-metal bottle bottom castable and preparation method thereof |
-
2014
- 2014-08-21 CN CN201410411796.XA patent/CN105461321A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316418A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Castable for aluminum industry |
| CN109516818A (en) * | 2018-12-03 | 2019-03-26 | 攀枝花钢城集团有限公司 | Hot-metal bottle bottom castable and preparation method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |